Trouble Code Access
- Use Self Diagnostic Checker (49 H018 9A1) and System Selector (49 B019 9A0) to retrieve trouble codes. Connect one lead of self diagnostic checker to ground and the other to system selector. Connect system selector to diagnostic connector. If system selector is not available, connect a jumper wire between terminals TEN and GND. See Fig 1
.
- With ignition on and engine stopped, observe CHECK ENGINE light or Malfunction Indicator Light (MIL). Note trouble codes. Check TROUBLE CODE IDENTIFICATION for possible cause. If light remains on continuously, MIL circuit is grounded or ECU is defective.
Courtesy of MAZDA MOTORS CORP.